An individual with achlorhydria (lack of or low gastric acid in stomach) may have abdominal pain due to difficulty digesting food, loose bowel movements & problems due to poor absorption of nutrients.
Foods for Good Digestion # 5: Sweet potatoes. Sweet potatoes, especially when consumed with their skins on, are a superb food for digestive health. They provide dietary fiber, complex carbohydrates and manganese. Sweet potatoes help in treating peptic ulcers, duodenal ulcers and some other serious bowel ailments.
Oats, brown rice, corn, rye, kidney beans and lentils are all good foods to consume. Diets high in refined starch and refined sugar may increase the risk of stomach cancer and bowel cancer. Meat and bowel cancer There is now convincing scientific evidence that eating processed meat increases bowel cancer risk.